There’s a lot of leeway you can take when it comes to cooking ― if you’re out of peanut butter, for example, almond butter will do in a pinch. But some culinary decisions are downright sinful. Twitter has called out the worst culinary cardinal sins with the hashtag #culinarycardinalsins, and we have to admit: they are spot on.

Margarine will never be a suitable substitute for butter ― just as a recent Dunkin’ Donuts lawsuit points out ― and raisins are the worst things to happen to oatmeal cookies, Twitter reminds us.

Read on for the worst culinary cardinal sins to happen in the kitchen.